I was on Topamax for 3 months to try to loose weight. I had severe anger on the drug and suicial instincts. I blacked out often and was very forgetful. I would have a hard time remembering things. One day I couldn't remember where my children had been. It was very scary. I ended up gaining weight on the drug. It all came to an end for me when I called my husband at work and told him that I was going to kill myself and I had no recolection of the converstation when he rushed home to help me.